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-rw-r--r--contrib/ipfilter/ipnat.c433
1 files changed, 0 insertions, 433 deletions
diff --git a/contrib/ipfilter/ipnat.c b/contrib/ipfilter/ipnat.c
deleted file mode 100644
index 69e7959..0000000
--- a/contrib/ipfilter/ipnat.c
+++ /dev/null
@@ -1,433 +0,0 @@
-/*
- * Copyright (C) 1993-2002 by Darren Reed.
- *
- * See the IPFILTER.LICENCE file for details on licencing.
- *
- * Added redirect stuff and a variety of bug fixes. (mcn@EnGarde.com)
- */
-#if defined(__sgi) && (IRIX > 602)
-# include <sys/ptimers.h>
-#endif
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/types.h>
-#if !defined(__SVR4) && !defined(__svr4__)
-#include <strings.h>
-#else
-#include <sys/byteorder.h>
-#endif
-#include <sys/time.h>
-#include <sys/param.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#if defined(sun) && (defined(__svr4__) || defined(__SVR4))
-# include <sys/ioccom.h>
-# include <sys/sysmacros.h>
-#endif
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include <net/if.h>
-#if __FreeBSD_version >= 300000
-# include <net/if_var.h>
-#endif
-#include <netdb.h>
-#include <arpa/nameser.h>
-#include <arpa/inet.h>
-#include <resolv.h>
-#include <ctype.h>
-#include <nlist.h>
-#include "netinet/ip_compat.h"
-#include "netinet/ip_fil.h"
-#include "netinet/ip_nat.h"
-#include "netinet/ip_state.h"
-#include "netinet/ip_proxy.h"
-#include "ipf.h"
-#include "kmem.h"
-
-#if defined(sun) && !SOLARIS2
-# define STRERROR(x) sys_errlist[x]
-extern char *sys_errlist[];
-#else
-# define STRERROR(x) strerror(x)
-#endif
-
-#if !defined(lint)
-static const char sccsid[] ="@(#)ipnat.c 1.9 6/5/96 (C) 1993 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ipnat.c,v 2.16.2.25 2003/06/05 14:00:28 darrenr Exp $";
-#endif
-
-
-#if SOLARIS
-#define bzero(a,b) memset(a,0,b)
-#endif
-int use_inet6 = 0;
-char thishost[MAXHOSTNAMELEN];
-
-extern char *optarg;
-extern int optind;
-#if 0
-extern ipnat_t *natparse __P((char *, int));
-#endif
-extern void natparsefile __P((int, char *, int));
-extern void printnat __P((ipnat_t *, int));
-extern void printactivenat __P((nat_t *, int));
-extern void printhostmap __P((hostmap_t *, u_int));
-extern char *getsumd __P((u_32_t));
-
-static int dostats __P((natstat_t *, int));
-static int flushtable __P((int, int));
-void usage __P((char *));
-int countbits __P((u_32_t));
-char *getnattype __P((ipnat_t *));
-int main __P((int, char*[]));
-void printaps __P((ap_session_t *, int));
-static int showhostmap __P((natstat_t *nsp));
-static int natstat_dead __P((natstat_t *, char *));
-
-
-void usage(name)
-char *name;
-{
- fprintf(stderr, "Usage: %s [-CFhlnrsv] [-f filename]\n", name);
- exit(1);
-}
-
-
-int main(argc, argv)
-int argc;
-char *argv[];
-{
- natstat_t ns, *nsp = &ns;
- char *file, *core, *kernel;
- int fd, opts, c, mode;
-
- fd = -1;
- opts = 0;
- file = NULL;
- core = NULL;
- kernel = NULL;
- mode = O_RDWR;
-
- while ((c = getopt(argc, argv, "CdFf:hlM:N:nrsv")) != -1)
- switch (c)
- {
- case 'C' :
- opts |= OPT_CLEAR;
- break;
- case 'd' :
- opts |= OPT_DEBUG;
- break;
- case 'f' :
- file = optarg;
- break;
- case 'F' :
- opts |= OPT_FLUSH;
- break;
- case 'h' :
- opts |=OPT_HITS;
- break;
- case 'l' :
- opts |= OPT_LIST;
- mode = O_RDONLY;
- break;
- case 'M' :
- core = optarg;
- break;
- case 'N' :
- kernel = optarg;
- break;
- case 'n' :
- opts |= OPT_NODO;
- mode = O_RDONLY;
- break;
- case 'r' :
- opts |= OPT_REMOVE;
- break;
- case 's' :
- opts |= OPT_STAT;
- mode = O_RDONLY;
- break;
- case 'v' :
- opts |= OPT_VERBOSE;
- break;
- case '?' :
- default :
- usage(argv[0]);
- }
-
- if (optind < 2)
- usage(argv[0]);
-
- if ((kernel != NULL) || (core != NULL)) {
- (void) setgid(getgid());
- (void) setuid(getuid());
- }
-
- bzero((char *)&ns, sizeof(ns));
-
- gethostname(thishost, sizeof(thishost));
- thishost[sizeof(thishost) - 1] = '\0';
-
- if (!(opts & OPT_NODO) && (kernel == NULL) && (core == NULL)) {
- if (openkmem(kernel, core) == -1)
- exit(1);
-
- if (((fd = open(IPL_NAT, mode)) == -1) &&
- ((fd = open(IPL_NAT, O_RDONLY)) == -1)) {
- (void) fprintf(stderr, "%s: open: %s\n", IPL_NAT,
- STRERROR(errno));
- if (errno == ENODEV)
- fprintf(stderr, "IPFilter enabled?\n");
- exit(1);
- }
- if (ioctl(fd, SIOCGNATS, &nsp) == -1) {
- perror("ioctl(SIOCGNATS)");
- exit(1);
- }
- (void) setgid(getgid());
- (void) setuid(getuid());
- } else if ((kernel != NULL) || (core != NULL)) {
- if (openkmem(kernel, core) == -1)
- exit(1);
-
- if (natstat_dead(nsp, kernel))
- exit(1);
- if (opts & (OPT_LIST|OPT_STAT)) {
- if (dostats(nsp, opts))
- exit(1);
- }
- exit(0);
- }
-
- if (opts & (OPT_FLUSH|OPT_CLEAR))
- if (flushtable(fd, opts))
- exit(1);
- if (file) {
- /* NB natparsefile exits with nonzero in case of error */
- natparsefile(fd, file, opts);
- }
- if (opts & (OPT_LIST|OPT_STAT))
- if (dostats(nsp, opts))
- exit(1);
-
- /* TBD why not exit(0)? */
- return 0;
-}
-
-
-/*
- * Read NAT statistic information in using a symbol table and memory file
- * rather than doing ioctl's.
- */
-static int natstat_dead(nsp, kernel)
-natstat_t *nsp;
-char *kernel;
-{
- struct nlist nat_nlist[10] = {
- { "nat_table" }, /* 0 */
- { "nat_list" },
- { "maptable" },
- { "ipf_nattable_sz" },
- { "ipf_natrules_sz" },
- { "ipf_rdrrules_sz" }, /* 5 */
- { "ipf_hostmap_sz" },
- { "nat_instances" },
- { "ap_sess_list" },
- { NULL }
- };
- void *tables[2];
-
- if (nlist(kernel, nat_nlist) == -1) {
- fprintf(stderr, "nlist error\n");
- return -1;
- }
-
- /*
- * Normally the ioctl copies all of these values into the structure
- * for us, before returning it to userland, so here we must copy each
- * one in individually.
- */
- kmemcpy((char *)&tables, nat_nlist[0].n_value, sizeof(tables));
- nsp->ns_table[0] = tables[0];
- nsp->ns_table[1] = tables[1];
-
- kmemcpy((char *)&nsp->ns_list, nat_nlist[1].n_value,
- sizeof(nsp->ns_list));
- kmemcpy((char *)&nsp->ns_maptable, nat_nlist[2].n_value,
- sizeof(nsp->ns_maptable));
- kmemcpy((char *)&nsp->ns_nattab_sz, nat_nlist[3].n_value,
- sizeof(nsp->ns_nattab_sz));
- kmemcpy((char *)&nsp->ns_rultab_sz, nat_nlist[4].n_value,
- sizeof(nsp->ns_rultab_sz));
- kmemcpy((char *)&nsp->ns_rdrtab_sz, nat_nlist[5].n_value,
- sizeof(nsp->ns_rdrtab_sz));
- kmemcpy((char *)&nsp->ns_hostmap_sz, nat_nlist[6].n_value,
- sizeof(nsp->ns_hostmap_sz));
- kmemcpy((char *)&nsp->ns_instances, nat_nlist[7].n_value,
- sizeof(nsp->ns_instances));
- kmemcpy((char *)&nsp->ns_apslist, nat_nlist[8].n_value,
- sizeof(nsp->ns_apslist));
-
- return 0;
-}
-
-
-/*
- * Display NAT statistics.
- */
-static int dostats(nsp, opts)
-natstat_t *nsp;
-int opts;
-{
- nat_t **nt[2], *np, nat;
- ipnat_t ipn;
- int rc = 0;
-
- /*
- * Show statistics ?
- */
- if (opts & OPT_STAT) {
- printf("mapped\tin\t%lu\tout\t%lu\n",
- nsp->ns_mapped[0], nsp->ns_mapped[1]);
- printf("added\t%lu\texpired\t%lu\n",
- nsp->ns_added, nsp->ns_expire);
- printf("no memory\t%lu\tbad nat\t%lu\n",
- nsp->ns_memfail, nsp->ns_badnat);
- printf("inuse\t%lu\nrules\t%lu\n",
- nsp->ns_inuse, nsp->ns_rules);
- printf("wilds\t%u\n", nsp->ns_wilds);
- if (opts & OPT_VERBOSE)
- printf("table %p list %p\n",
- nsp->ns_table, nsp->ns_list);
- }
-
- /*
- * Show list of NAT rules and NAT sessions ?
- */
- if (opts & OPT_LIST) {
- printf("List of active MAP/Redirect filters:\n");
- while (nsp->ns_list) {
- if (kmemcpy((char *)&ipn, (long)nsp->ns_list,
- sizeof(ipn))) {
- perror("kmemcpy");
- rc = -1;
- break;
- }
- if (opts & OPT_HITS)
- printf("%d ", ipn.in_hits);
- printnat(&ipn, opts & (OPT_DEBUG|OPT_VERBOSE));
- nsp->ns_list = ipn.in_next;
- }
-
- nt[0] = (nat_t **)malloc(sizeof(*nt) * NAT_SIZE);
- if (kmemcpy((char *)nt[0], (long)nsp->ns_table[0],
- sizeof(**nt) * NAT_SIZE)) {
- perror("kmemcpy");
- rc = -1;
- }
- if (rc) {
- free(nt[0]);
- return rc;
- }
-
- printf("\nList of active sessions:\n");
-
- for (np = nsp->ns_instances; np; np = nat.nat_next) {
- if (kmemcpy((char *)&nat, (long)np, sizeof(nat))) {
- /* TBD Is this an error? If so, return -1 */
- break;
- }
- printactivenat(&nat, opts);
- }
-
- if (opts & OPT_VERBOSE) {
- if (showhostmap(nsp)) {
- free(nt[0]);
- return -1;
- }
- }
-
- free(nt[0]);
- }
- return 0;
-}
-
-
-/*
- * Display the active host mapping table.
- */
-static int showhostmap(nsp)
-natstat_t *nsp;
-{
- hostmap_t hm, *hmp, **maptable;
- u_int hv;
-
- printf("\nList of active host mappings:\n");
-
- maptable = (hostmap_t **)malloc(sizeof(hostmap_t *) *
- nsp->ns_hostmap_sz);
- if (kmemcpy((char *)maptable, (u_long)nsp->ns_maptable,
- sizeof(hostmap_t *) * nsp->ns_hostmap_sz)) {
- perror("kmemcpy (maptable)");
- free(maptable);
- return -1;
- }
-
- for (hv = 0; hv < nsp->ns_hostmap_sz; hv++) {
- hmp = maptable[hv];
-
- while (hmp) {
- if (kmemcpy((char *)&hm, (u_long)hmp, sizeof(hm))) {
- perror("kmemcpy (hostmap)");
- free(maptable);
- return -1;
- }
-
- printhostmap(&hm, hv);
- hmp = hm.hm_next;
- }
- }
- free(maptable);
- return 0;
-}
-
-
-/*
- * Issue an ioctl to flush either the NAT rules table or the active mapping
- * table or both.
- */
-static int flushtable(fd, opts)
-int fd, opts;
-{
- int n = 0;
- int rc = 0;
-
- if (opts & OPT_FLUSH) {
- n = 0;
- if (!(opts & OPT_NODO) && ioctl(fd, SIOCIPFFL, &n) == -1) {
- perror("ioctl(SIOCFLNAT)");
- rc = -1;
- } else {
- printf("%d entries flushed from NAT table\n", n);
- }
- }
-
- if (opts & OPT_CLEAR) {
- n = 1;
- if (!(opts & OPT_NODO) && ioctl(fd, SIOCIPFFL, &n) == -1) {
- perror("ioctl(SIOCCNATL)");
- rc = -1;
- } else {
- printf("%d entries flushed from NAT list\n", n);
- }
- }
-
- return rc;
-}
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